CVE-2023-20073: Cisco RV340 Firmware

Critical severity, CVSS 9.8. EPSS: 90.1% chance of exploitation in the next 30 days.

A vulnerability in the web-based management interface of Cisco RV340, RV340W, RV345, and RV345P Dual WAN Gigabit VPN Routers could allow an unauthenticated, remote attacker to upload arbitrary files to an affected device. This vulnerability is due to insufficient authorization enforcement mechanisms in the context of file uploads. An attacker could exploit this vulnerability by sending a crafted HTTP request to an affected device. A successful exploit could allow the attacker to upload arbitrary files to the affected device.

Affected products

• Cisco RV340 Firmware: up to and including 1.0.03.29
• Cisco RV340W Firmware: up to and including 1.0.03.29
• Cisco RV345 Firmware: up to and including 1.0.03.29
• Cisco RV345P Firmware: up to and including 1.0.03.29

Published 2023-04-05. Last modified 2026-06-17.